CN105937306B - A kind of device and method of pre-stress fibre sheet material reinforced column - Google Patents
A kind of device and method of pre-stress fibre sheet material reinforced column Download PDFInfo
- Publication number
- CN105937306B CN105937306B CN201610343980.4A CN201610343980A CN105937306B CN 105937306 B CN105937306 B CN 105937306B CN 201610343980 A CN201610343980 A CN 201610343980A CN 105937306 B CN105937306 B CN 105937306B
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- China
- Prior art keywords
- sheet material
- fibre sheet
- end anchorage
- convex
- hydraulic jack
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
- E04G2023/0251—Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
- E04G2023/0262—Devices specifically adapted for anchoring the fiber reinforced plastic elements, e.g. to avoid peeling off
Abstract
The invention discloses a kind of device of pre-stress fibre sheet material reinforced column, including fixing end anchorage, the stretching end anchorage being anchored on concrete column, the convex hydraulic jack being connected with fixing end anchorage, stretching end anchorage；Two points of clip type fixtures are further included, the cylinder with bolumn cap is welded in clip type fixture upper surface, and the sleeve being nested in outside cylinder is connected in convex hydraulic jack by compression bar；Fibre sheet material one end is clamped by the clip type fixture of stretching end, and the other end is anchored in fixing end anchorage.Prestressing force can effectively be applied to the fibre sheet material of the reinforced column of outsourcing, the thicker fibre sheet material such as the relatively thin fibre sheet material such as effective gripping fibers cloth and fiberboard, and higher prestressing force can be kept, reduce rolled steel dosage, save reinforcement cost, construct quick and convenient, it is convenient to be promoted the use of in engineering reinforcement.
Description
Technical field
The present invention relates to civil engineering technical field of transportation, the specifically a kind of device of pre-stress fibre sheet material reinforced column and side
Method.
Background technology
Due to the influence of material aging, construction quality, nature or the factor such as artificial, existing many reinforced concrete works
Anxious to be repaired and reinforcing, countries in the world will expend huge fund for this every year.Fibre sheet material has lightweight, high-strength, corrosion-resistant, by fibre
Sheet attaching is tieed up in component surface tension, can strengthen and improve the stress performance of component.But to reinforced column only
Using fibre sheet material outsourcing reinforcement technique, it is a kind of passive enforcement technology, there is Stress resort, to service stage performance without changing
It is kind, the shortcomings that bearing capacity increase rate is limited.It is that solution is above-mentioned to apply prestressing force using the big fibre sheet material of rigidity and to it
The effective ways of engineering problem.By applying prestressing force to fibre sheet material, and armored concrete is anchored at by dedicated anchorage
On column, it is possible to increase the rate of utilization of strength of fibre sheet material, can preferably improve the performance for the service stage for being reinforced column, effectively control
The development in crack processed, reduces the deformation of column, and passive enforcement is changed into actively reinforcing.Prestressing technique is introduced into fibre sheet material outer patch
Reinforced column has very important meaning and effect.But having not yet to see can be in the pre-stress fibre sheet material of practical engineering application
The device and method of reinforced column, rarely seen have the device of a small amount of prestressed fiber cloth reinforced column, but is only limitted to laboratory indoor application,
Can not in engineering large-scale promotion；And for thicker pre-stress fibre plate, reinforcing slab plate is only used at present, there is not yet
The devices and methods therefor of pre-stress fibre plate reinforced column.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of pre-stress fibre sheet material and adds
Gu the device and method of column.
Technical solution：In order to solve the above technical problems, a kind of device of pre-stress fibre sheet material reinforced column of the present invention, bag
The fixing end anchorage being anchored on concrete column, stretching end anchorage are included, the convex liquid being connected with fixing end anchorage, stretching end anchorage
Press jack；Two points of clip type fixtures are further included, the cylinder with bolumn cap is welded in clip type fixture upper surface, is nested in cylinder
Outer sleeve is connected in convex hydraulic jack by compression bar；Fibre sheet material one end is pressed from both sides by the clip type fixture of stretching end
Hold, the other end is anchored in fixing end anchorage.
Wherein, fixing end anchorage, stretching end anchorage are made of anchor cup, intermediate plate, and two groups of threaded holes are provided with anchor cup, one group
Hole is used for plant anchor in column, and another group of hole is used for screw rod connection fixing end anchorage, stretching end anchorage and convex hydraulic jack
Top.
Wherein, convex hydraulic jack shape is convex, is connected and formed with convex steel sleeve by hydraulic jack, it passes through
Two wing plates of convex steel sleeve are fixed on fixing end anchorage and stretching end anchorage.
Wherein, two points of clip type fixtures are made of two anchor cups and intermediate plate, and two anchor cups are connected by high-strength bolt.
Wherein, the diameter of sleeve is more than the diameter of cylinder, and the height of sleeve is identical with cylinder, and sleeve can be in cylinder and column
It is freely rotated under the constraint of cap.
Wherein, fibre sheet material is carbon fiber plate, in basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic
One kind, or carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic and steel fibre composite sheet
Material.
A kind of method of pre-stress fibre sheet material reinforced column, comprises the following steps：
(1) bolt is planted on concrete column, fixing end anchorage, stretching end anchorage are secured by bolts on column；
(2) fibre sheet material passes through the anchor cup of stretching end anchorage, and both ends are anchored in two points of clip type fixtures by intermediate plate respectively
With fixing end anchorage；
(3) convex hydraulic jack is anchored on stretching end anchorage；
(4) compression bar and cylinder are connected, top-pressing jack, applies prestressing force to fibre sheet material；
(5) after fibre sheet material prestressing force reaches requirement, intermediate plate wedging is entered to anchoring fiber in the anchor cup of stretching end anchorage
Sheet material；
(6) screw rod of two points of clip type fixtures is unloaded, achievees the purpose that prestressing force is put and opens, and remove two points of clip type fixtures
With convex hydraulic jack.
Wherein, fibre sheet material is carbon fiber plate, in basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic
One kind, or carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic and steel fibre composite sheet
Material.
Beneficial effect：A kind of device and method of pre-stress fibre sheet material reinforced column of the present invention, has below beneficial to effect
Fruit：
1. it can effectively apply prestressing force to the fibre sheet material of the reinforced column of outsourcing, so as to improve the strong of fibre sheet material
Utilization rate is spent, can preferably improve the performance for the service stage for being reinforced column, the development of effective control critical eigenvalue, reduces the change of column
Shape, passive enforcement is changed into actively reinforcing.
2. can the effectively thicker fibre sheet material such as the relatively thin fibre sheet material such as gripping fibers cloth and fiberboard, and keeping
Higher prestressing force.
3. the rate of utilization of strength of fibre sheet material can be improved due to applying prestressing force, thus improving identical bearing capacity
Under the premise of, the dosage of fibre sheet material can be greatlyd save, and since in addition to two anchorages, other components are repeatable to be made
With reducing rolled steel dosage, save reinforcement cost.
4. construction is quick and convenient, convenient to be promoted the use of in engineering reinforcement.
Brief description of the drawings
Fig. 1 is 3 D stereo schematic diagram of the present invention；
Fig. 2 is the top view of the device of pre-stress fibre sheet material reinforced column of the present invention；
Fig. 3 is the front view of the device of pre-stress fibre sheet material reinforced column of the present invention；
Fig. 4 is the front view of the convex hydraulic jack of the present invention；
Fig. 5 is the bottom view of the convex hydraulic jack of the present invention.
In figure：1-fixing end anchorage, 2-high-strength bolt, 3-convex hydraulic jack, 4-two points of clip type fixtures,
5-bolumn cap, 6-cylinder, 7-sleeve, 8-compression bar, 9-fibre sheet material, 10-stretching end anchorage, 11-concrete column,
12-hydraulic jack, 13-convex steel sleeve.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Such as Fig. 1, Fig. 2, shown in Fig. 3, a kind of device of pre-stress fibre sheet material reinforced column of the invention, including be anchored in mixed
Fixing end anchorage 1, stretching end anchorage 10 on solidifying earth pillar 11, the convex hydraulic pressure being connected with fixing end anchorage 1, stretching end anchorage 10
Jack 3；Two points of clip type fixtures 4 are further included, the cylinder 6 with bolumn cap 5 is welded in 4 upper surface of clip type fixture, is nested in
Sleeve 7 outside cylinder 6 is connected in convex hydraulic jack 3 by compression bar 8；9 one end of fibre sheet material by stretching end intermediate plate
Formula fixture 4 clamps, and the other end is anchored in fixing end anchorage 1, and fixing end anchorage 1, stretching end anchorage 10 are made of anchor cup, intermediate plate,
And two groups of threaded holes are provided with anchor cup, one group of hole is used for plant anchor in column, and another group of hole is used for screw rod connection fixing end anchor
Tool 1, stretching end anchorage 10 and convex hydraulic jack 3,3 shape of convex hydraulic jack is convex, by 12 He of hydraulic jack
The connection composition of convex steel sleeve 13, it is fixed on fixing end anchorage 1 and stretching end anchorage by 13 two wing plates of convex steel sleeve
On 10.Two points of clip type fixtures 4 are made of two anchor cups and intermediate plate, and two anchor cups are connected by high-strength bolt 2, sleeve 7 it is straight
Footpath is more than the diameter of cylinder 6, and the height of sleeve 7 is identical with cylinder 6, and sleeve 7 can be under the constraint of cylinder 6 and bolumn cap 5 freely
Rotating, fibre sheet material 9 is carbon fiber plate, one kind in basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic,
Or carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic and steel fibre composite sheet.Wherein,
Fixing end anchorage and stretching end anchorage are provided with 4 row, 12 threaded holes, wherein interior two rows are connected by high-strength bolt bar planting with cylinder,
Outer two rows are connected by high-strength bolt with convex hydraulic jack, to fixed convex hydraulic jack.Sleeve diameter compares cylinder
Big 1mm, it is ensured that sleeve can be freely rotated under the constraint of cylinder and bolumn cap, but cannot move up and down, so as to fulfill hinged
Purpose.Two points of clip type fixtures are provided with 2 row, 6 threaded holes, and two sseparated anchor cups are assembled into an anchor by high-strength bolt
Cup.Wherein, 3 shape of convex hydraulic jack is convex, is made of hydraulic jack 12 and the connection of convex steel sleeve 13, it passes through
13 two wing plates of convex steel sleeve are fixed on fixing end anchorage 1 and stretching end anchorage 10.
The present invention also provides a kind of method of pre-stress fibre sheet material reinforced column, comprise the following steps：
(1) bolt 2 is planted on concrete column 11, fixing end anchorage 1, stretching end anchorage 10 are fixed on column by bolt 2；
(2) fibre sheet material 9 passes through the anchor cup of stretching end anchorage 10, and both ends are anchored in two points of clip type folders by intermediate plate respectively
Tool 4 and fixing end anchorage 1；
(3) convex hydraulic jack 3 is anchored on stretching end anchorage 10；
(4) compression bar 8 and cylinder 6 are connected, top-pressing jack, applies prestressing force to fibre sheet material 9；
(5) after 9 prestressing force of fibre sheet material reaches requirement, intermediate plate wedging is entered fixed fine in the anchor cup of stretching end anchorage 10
Tie up sheet material 9；
(6) screw rod of two points of clip type fixtures 4 is unloaded, achievees the purpose that prestressing force is put and opens, and removes two points of clip types folders
Tool 4 and convex hydraulic jack 3, finally carry out the surface protection measure of spraying mortar.
Fibre sheet material 9 is one in carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic
Kind, or carbon fiber plate, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic and steel fibre composite sheet.
The above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
- A kind of 1. device of pre-stress fibre sheet material reinforced column, it is characterised in that：Including being anchored in consolidating on concrete column (11) Fixed end anchorage (1), stretching end anchorage (10), the convex hydraulic jack being connected with fixing end anchorage (1), stretching end anchorage (10) (3)；Two points of clip type fixtures (4) are further included, the cylinder (6) with bolumn cap (5) is welded in clip type fixture (4) upper surface, embedding The sleeve (7) of cylinder (6) outside is placed on to be connected in convex hydraulic jack (3) by compression bar (8)；Fibre sheet material (9) one end Clamped by the clip type fixture (4) of stretching end, the other end is anchored in fixing end anchorage (1)；Fixing end anchorage (1), stretching end anchor Tool (10) is made of anchor cup, intermediate plate, and two groups of threaded holes is provided with anchor cup, and one group of hole is used for plant anchor in column, another group Hole is used for screw rod connection fixing end anchorage (1), stretching end anchorage (10) and convex hydraulic jack (3).
- A kind of 2. device of pre-stress fibre sheet material reinforced column according to claim 1, it is characterised in that：Wherein, convex Hydraulic jack (3) shape is convex, is made of hydraulic jack (12) and convex steel sleeve (13) connection, it passes through convex steel (13) two wing plates of overcoat are fixed on fixing end anchorage (1) and stretching end anchorage (10).
- A kind of 3. device of pre-stress fibre sheet material reinforced column according to claim 1, it is characterised in that：Wherein, two points Clip type fixture (4) is made of two anchor cups and intermediate plate, and two anchor cups are connected by high-strength bolt (2).
- A kind of 4. device of pre-stress fibre sheet material reinforced column according to claim 1, it is characterised in that：Wherein, sleeve (7) diameter is more than the diameter of cylinder (6), and the height of sleeve (7) is identical with cylinder (6), sleeve (7) can in cylinder (6) and It is freely rotated under the constraint of bolumn cap (5).
- A kind of 5. device of pre-stress fibre sheet material reinforced column according to claim 1, it is characterised in that：Wherein, fiber Sheet material (9) is carbon fiber plate, one kind in basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic, or carbon is fine Tie up sheet material, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic and steel fibre composite sheet.
- A kind of 6. method according to claim 1-5 any one of them pre-stress fibre sheet material reinforced columns, it is characterised in that bag Include following steps：(1) bolt (2) is planted on concrete column (11), fixing end anchorage (1), stretching end anchorage (10) are fixed by bolt (2) In on column；(2) fibre sheet material (9) passes through the anchor cup of stretching end anchorage (10), and both ends are anchored in two points of clip type folders by intermediate plate respectively Have (4) and fixing end anchorage (1)；(3) convex hydraulic jack (3) is anchored on stretching end anchorage (10)；(4) compression bar (8) and cylinder (6) are connected, top-pressing jack, applies prestressing force to fibre sheet material (9)；(5) after fibre sheet material (9) prestressing force reaches requirement, intermediate plate wedging is entered fixed fine in the anchor cup of stretching end anchorage (10) Tie up sheet material (9)；(6) screw rod of two points of clip type fixtures (4) is unloaded, achievees the purpose that prestressing force is put and opens, and remove two points of clip type fixtures (4) and convex hydraulic jack (3).
- A kind of 7. method of pre-stress fibre sheet material reinforced column according to claim 6, it is characterised in that：Wherein, fiber Sheet material (9) is carbon fiber plate, one kind in basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic, or carbon is fine Tie up sheet material, basalt fibre sheet material, glass fibre sheet, aramid fiber reinforced plastic and steel fibre composite sheet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610343980.4A CN105937306B (en) | 2016-05-20 | 2016-05-20 | A kind of device and method of pre-stress fibre sheet material reinforced column |
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| CN201610343980.4A CN105937306B (en) | 2016-05-20 | 2016-05-20 | A kind of device and method of pre-stress fibre sheet material reinforced column |
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| CN105937306B true CN105937306B (en) | 2018-05-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3114830A1 (en) * | 2020-10-06 | 2022-04-08 | Pericles Innovation Scsp Intellectual Property And It Certificate | Method for renovating or reinforcing a construction element by at least one elongated reinforcement and device for tensioning such an elongated reinforcement |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107268893B (en) * | 2017-05-24 | 2023-04-21 | 山东英特力新材料有限公司 | Spliced prestress carbon fiber plate bearing column |
| CN108824229B (en) * | 2018-08-28 | 2023-11-10 | 南京林业大学 | Annular lapping method for FRP shell of reinforced bridge underwater structure |
| CN110565547B (en) * | 2019-10-17 | 2020-06-26 | 北京市市政四建设工程有限责任公司 | Inclined leg steel bridge supporting and jacking reinforcing device and method |
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| JPH06280346A (en) * | 1993-03-25 | 1994-10-04 | Kajima Corp | Construction method for manufacture prestressed concrete member |
| CN101736912A (en) * | 2009-12-03 | 2010-06-16 | 吴智深 | Anchorage method based on technique of bonding and reinforcement outside prestressed fiber cloth |
| CN201778500U (en) * | 2010-08-16 | 2011-03-30 | 合肥工业大学 | Device for pretensioning carbon fiber board to reinforce concrete beam board |
| CN103485546A (en) * | 2013-10-08 | 2014-01-01 | 魏拥军 | Prestress tension device and tension method for carbon fiber sheets |
| CN104153584A (en) * | 2014-08-22 | 2014-11-19 | 中国铁道科学研究院铁道建筑研究所 | Tensioned anchorage device and using method of tensioned anchorage device |
| CN205805013U (en) * | 2016-05-20 | 2016-12-14 | 东南大学 | A kind of device of pre-stress fibre sheet material reinforced column |
-
2016
- 2016-05-20 CN CN201610343980.4A patent/CN105937306B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06280346A (en) * | 1993-03-25 | 1994-10-04 | Kajima Corp | Construction method for manufacture prestressed concrete member |
| CN101736912A (en) * | 2009-12-03 | 2010-06-16 | 吴智深 | Anchorage method based on technique of bonding and reinforcement outside prestressed fiber cloth |
| CN201778500U (en) * | 2010-08-16 | 2011-03-30 | 合肥工业大学 | Device for pretensioning carbon fiber board to reinforce concrete beam board |
| CN103485546A (en) * | 2013-10-08 | 2014-01-01 | 魏拥军 | Prestress tension device and tension method for carbon fiber sheets |
| CN104153584A (en) * | 2014-08-22 | 2014-11-19 | 中国铁道科学研究院铁道建筑研究所 | Tensioned anchorage device and using method of tensioned anchorage device |
| CN205805013U (en) * | 2016-05-20 | 2016-12-14 | 东南大学 | A kind of device of pre-stress fibre sheet material reinforced column |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3114830A1 (en) * | 2020-10-06 | 2022-04-08 | Pericles Innovation Scsp Intellectual Property And It Certificate | Method for renovating or reinforcing a construction element by at least one elongated reinforcement and device for tensioning such an elongated reinforcement |
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| CN105937306A (en) | 2016-09-14 |
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